Finding the Fourth Proportional to 2,378,866.11, 3,282,845.12 and 1,291,139.25
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Solution
The fourth proportional to 2,378,866.11, 3,282,845.12 and 1,291,139.25 is: 1,781,777.53
Step by Step Solution
- Step 1: Write the proportion equation
2,378,866.11 : 3,282,845.12 = 1,291,139.25 : x - Step 2: Convert to fraction form
2,378,866.11/3,282,845.12 = 1,291,139.25/x - Step 3: Cross multiply
2,378,866.11x = 3,282,845.12 × 1,291,139.25 - Step 4: Simplify right side
2,378,866.11x = 4,238,610,186,102.96 - Step 5: Solve for x
x = 4,238,610,186,102.96/2,378,866.11 - Step 6: Final answer
x = 1,781,777.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.